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extracting sentences that only contain a word

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# 1  
Old 06-06-2011
extracting sentences that only contain a word
Hi guys

Need your help how do I extract sentences with only a word

i.e.

today is hot

hot

very

[tab]humid

humid2


Sample output

hot
very
humid
humid2

Thanks
# 2  
Old 06-06-2011
This should give what u want....
Code:
nawk 'NF==1 {print}' filename

Thanks
SHa
# 3  
Old 06-06-2011
WOW! thanks Shahul!
# 4  
Old 06-06-2011
Try this:
Code:
awk 'NF==1' your_file

# 5  
Old 06-06-2011
Hi,

Using 'perl':
Code:
$ perl -ne 'print +(map { s/^\s*(\S+)\s*$/$1/; $_ } $_), "\n" if /^\s*\S+\s*$/' infile

Regards,
Birei
# 6  
Old 06-06-2011
This gets rid of the tab
Code:
awk 'NF==1 && $1=$1' infile

# 7  
Old 06-06-2011
Quote:
awk '{if ( NF ==1 ) print }' filename
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